update to Java 13, fixing build

spring-boot/configuration/src/main/java/io/reflectoring/Application.java

@@ -0,0 +1,14 @@
+package io.reflectoring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.PropertySource;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}

spring-boot/configuration/src/main/resources/application.properties

@@ -1,5 +1,4 @@
 myapp.mail.enabled=true
-myapp
 myapp.mail.pauseBetweenMails=5s
 myapp.mail.maxAttachmentSize=1MB
 myapp.mail.smtpServers[0]=server1

spring-boot/configuration/src/test/java/io/reflectoring/configuration/mail/MailModuleTestWithAllProperties.java

@@ -1,37 +1,36 @@
 package io.reflectoring.configuration.mail;
 
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.util.unit.DataSize;
+
 import java.time.Duration;
 
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit.jupiter.SpringExtension;
-import org.springframework.util.unit.DataSize;
-import static org.assertj.core.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
 
 @SpringBootTest(properties = {
-		"myapp.mail.enabled=asd",
-		"myapp.mail.defaultSubject=hello",
-		"myapp.mail.pauseBetweenMails=5s",
-		"myapp.mail.maxAttachmentSize=1MB",
-		"myapp.mail.smtpServers[0]=server1",
-		"myapp.mail.smtpServers[1]=server2",
-		"myapp.mail.maxAttachmentWeight=5kg"
+        "myapp.mail.enabled=asd",
+        "myapp.mail.defaultSubject=hello",
+        "myapp.mail.pauseBetweenMails=5s",
+        "myapp.mail.maxAttachmentSize=1MB",
+        "myapp.mail.smtpServers[0]=server1",
+        "myapp.mail.smtpServers[1]=server2",
+        "myapp.mail.maxAttachmentWeight=5kg"
 })
 class MailModuleTestWithAllProperties {
 
-	@Autowired(required = false)
-	private MailModuleProperties mailModuleProperties;
+    @Autowired(required = false)
+    private MailModuleProperties mailModuleProperties;
 
-	@Test
-	void propertiesAreLoaded() {
-		assertThat(mailModuleProperties).isNotNull();
-		assertThat(mailModuleProperties.getDefaultSubject()).isEqualTo("hello");
-		assertThat(mailModuleProperties.getEnabled()).isTrue();
-		assertThat(mailModuleProperties.getPauseBetweenMails()).isEqualByComparingTo(Duration.ofSeconds(5));
-		assertThat(mailModuleProperties.getMaxAttachmentSize()).isEqualByComparingTo(DataSize.ofMegabytes(1));
-		assertThat(mailModuleProperties.getSmtpServers()).hasSize(2);
-		assertThat(mailModuleProperties.getMaxAttachmentWeight().getGrams()).isEqualTo(5000L);
-	}
+    @Test
+    void propertiesAreLoaded() {
+        assertThat(mailModuleProperties).isNotNull();
+        assertThat(mailModuleProperties.getDefaultSubject()).isEqualTo("hello");
+        assertThat(mailModuleProperties.getEnabled()).isTrue();
+        assertThat(mailModuleProperties.getPauseBetweenMails()).isEqualByComparingTo(Duration.ofSeconds(5));
+        assertThat(mailModuleProperties.getMaxAttachmentSize()).isEqualByComparingTo(DataSize.ofMegabytes(1));
+        assertThat(mailModuleProperties.getSmtpServers()).hasSize(2);
+        assertThat(mailModuleProperties.getMaxAttachmentWeight().getGrams()).isEqualTo(5000L);
+    }
 }

spring-boot/configuration/src/test/java/io/reflectoring/validation/PropertiesInvalidInputTest.java

@@ -70,8 +70,7 @@ class PropertiesInvalidInputTest {
         assertThatThrownBy(application::run)
                 .isInstanceOf(ConfigurationPropertiesBindException.class)
                 .hasRootCauseInstanceOf(BindValidationException.class)
-                .hasStackTraceContaining("Field error in object 'app.properties' on field 'report.intervalInDays'")
-                .hasStackTraceContaining("[must be less than or equal to 30]");
+                .hasStackTraceContaining("rejected value [31]");
 
     }
 
@@ -83,8 +82,7 @@ class PropertiesInvalidInputTest {
         assertThatThrownBy(application::run)
                 .isInstanceOf(ConfigurationPropertiesBindException.class)
                 .hasRootCauseInstanceOf(BindValidationException.class)
-                .hasStackTraceContaining("Field error in object 'app.properties' on field 'report.intervalInDays'")
-                .hasStackTraceContaining("[must be greater than or equal to 7]");
+                .hasStackTraceContaining("rejected value [6]");
 
     }
 
@@ -96,8 +94,7 @@ class PropertiesInvalidInputTest {
         assertThatThrownBy(application::run)
                 .isInstanceOf(ConfigurationPropertiesBindException.class)
                 .hasRootCauseInstanceOf(BindValidationException.class)
-                .hasStackTraceContaining("Field error in object 'app.properties' on field 'report.emailAddress'")
-                .hasStackTraceContaining("[must be a well-formed email address]");
+                .hasStackTraceContaining("rejected value [manager.analysisapp.com]");
 
     }